What event is generated when files are added to a folder?

Question

.NET

Application - displays photos from a network folder.
You need to keep track of adding new photos.
What class can help?

Answer 1

A handwritten one will help.
View the last modified date/time and compare with the previous one ->
if different, then compare the number of files in the folder before and after ->
if different, scan the filenames and find the differences -> update the list of files
At worst, Google does a great job with this question, for example: FileSystemWatcher